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  ISLOGI()                                                   Pseudo-Function
 Purpose..: Verify whether a item is a logical variable
-------------------------------------------------------------------------------
 Syntax...: ISLOGI( <uItem> ) --> lLogical

 Arguments: <uItem>  = a variable to be checked for type.
                       There is no default.

 Returns..: lLogical returns true if uItem is an logical data type.

 Remark...: The command is a #translate function.

               #translate ISLOGI( <v1> )   ;
                   => ;
                         ( valtype( <v1> ) == "L" )

            You must have a #include "FW_AIDS.CH" statement in your
            source code file to use the command.

 Source...: FW_AIDS.CH
-------------------------------------------------------------------------------
 Example..: In a function, you can use the command to check
            the variable type.

            iif( ISLOGI( lIsIt ), TRUE, cDefault )